An occurred when executing ldifde.exe Installing Exchange 2007 SP2 or SP3

Disable the TCP Chimney on all of the domain controllers




 




2003 Servers




Netsh int ip set chimney DISABLED 




 




2008 Servers




netsh int tcp set global chimney=disabled




netsh int tcp set global rss=disabled




 




After that reboot all of your domain controllers




 




Also your can run this command on all of the domain controllers to sync them




repadmin /syncall 




 




Now try updating the schema first before installing Exchange 2007 SP2 or SP3 




setup.com /prepareschema




 




Now you can run the setup like normal




 




 




http://support.microsoft.com/kb/912222




http://support.microsoft.com/kb/951037